As a Just So Story it has a certain appeal, even if the title might have been a little risqué for Rudyard Kipling: How the Sloth Developed its Unusual Defecatory Habits.
Once upon a time, the three-toed sloth provided a mystery to scientists. This slow-moving South American mammal spends almost all its life in the forest canopy, hiding from considerably less-slow-moving predators. But every week, with the sort of regularity a prune and All-Bran aficionado would be proud of, it descends to the forest floor, digs a hole, performs its toilet, and returns.
This one coy act leads to the